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Tactility/TactilityHeadless/Source/service/wifi/WifiEsp.cpp
Ken Van Hoeylandt 0188ce721c
Boot splash and more (#98) 
* Boot splash and more

- Added developer sdkconfig
- Refactored the way FreeRTOS includes are included
- Improved Gui/Loader logic
- Implemented boot app with splash screen

* Updated naming for Gui and Loader services

* Renamed Screenshot service methods

* Renames

* Service renames
2024-11-30 15:37:16 +01:00

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25 KiB
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Raw Blame History

#ifdef ESP_TARGET
#include "Wifi.h"
#include "MessageQueue.h"
#include "Mutex.h"
#include "Check.h"
#include "freertos/FreeRTOS.h"
#include "freertos/event_groups.h"
#include "Log.h"
#include "Pubsub.h"
#include "service/Service.h"
#include "WifiSettings.h"
#include <atomic>
#include <cstring>
#include <sys/cdefs.h>
#include <TactilityCore.h>
namespace tt::service::wifi {
#define TAG "wifi_service"
#define WIFI_CONNECTED_BIT BIT0
#define WIFI_FAIL_BIT BIT1
typedef enum {
WifiMessageTypeRadioOn,
WifiMessageTypeRadioOff,
WifiMessageTypeScan,
WifiMessageTypeConnect,
WifiMessageTypeDisconnect,
WifiMessageTypeAutoConnect,
} WifiMessageType;
typedef struct {
} WifiConnectMessage;
typedef struct {
WifiMessageType type;
union {
WifiConnectMessage connect_message;
};
} WifiMessage;
class Wifi {
public:
Wifi();
~Wifi();
std::atomic<WifiRadioState> radio_state;
/** @brief Locking mechanism for modifying the Wifi instance */
Mutex mutex = Mutex(MutexTypeRecursive);
/** @brief The public event bus */
PubSub* pubsub = nullptr;
/** @brief The internal message queue */
MessageQueue queue = MessageQueue(1, sizeof(WifiMessage));
// TODO: Deal with messages that come in while an action is ongoing
// for example: when scanning and you turn off the radio, the scan should probably stop or turning off
// the radio should disable the on/off button in the app as it is pending.
/** @brief The network interface when wifi is started */
esp_netif_t* _Nullable netif = nullptr;
/** @brief Scanning results */
wifi_ap_record_t* _Nullable scan_list = nullptr;
/** @brief The current item count in scan_list (-1 when scan_list is NULL) */
uint16_t scan_list_count = 0;
/** @brief Maximum amount of records to scan (value > 0) */
uint16_t scan_list_limit = TT_WIFI_SCAN_RECORD_LIMIT;
bool scan_active = false;
bool secure_connection = false;
esp_event_handler_instance_t event_handler_any_id = nullptr;
esp_event_handler_instance_t event_handler_got_ip = nullptr;
EventFlag connection_wait_flags;
settings::WifiApSettings connection_target = {
.ssid = { 0 },
.password = { 0 },
.auto_connect = false
};
bool connection_target_remember = false; // Whether to store the connection_target on successful connection or not
};
static Wifi* wifi_singleton = nullptr;
// Forward declarations
static void scan_list_free_safely(Wifi* wifi);
static void disconnect_internal_but_keep_active(Wifi* wifi);
static void lock(Wifi* wifi);
static void unlock(Wifi* wifi);
// region Alloc
Wifi::Wifi() : radio_state(WIFI_RADIO_OFF) {
pubsub = tt_pubsub_alloc();
}
Wifi::~Wifi() {
tt_pubsub_free(pubsub);
}
// endregion Alloc
// region Public functions
PubSub* getPubsub() {
tt_assert(wifi_singleton);
return wifi_singleton->pubsub;
}
WifiRadioState getRadioState() {
tt_assert(wifi_singleton);
lock(wifi_singleton);
WifiRadioState state = wifi_singleton->radio_state;
unlock(wifi_singleton);
return state;
}
void scan() {
tt_assert(wifi_singleton);
lock(wifi_singleton);
WifiMessage message = {.type = WifiMessageTypeScan};
// No need to lock for queue
wifi_singleton->queue.put(&message, 100 / portTICK_PERIOD_MS);
unlock(wifi_singleton);
}
bool isScanning() {
tt_assert(wifi_singleton);
lock(wifi_singleton);
bool is_scanning = wifi_singleton->scan_active;
unlock(wifi_singleton);
return is_scanning;
}
void connect(const settings::WifiApSettings* ap, bool remember) {
tt_assert(wifi_singleton);
lock(wifi_singleton);
memcpy(&wifi_singleton->connection_target, ap, sizeof(settings::WifiApSettings));
wifi_singleton->connection_target_remember = remember;
WifiMessage message = {.type = WifiMessageTypeConnect};
wifi_singleton->queue.put(&message, 100 / portTICK_PERIOD_MS);
unlock(wifi_singleton);
}
void disconnect() {
tt_assert(wifi_singleton);
lock(wifi_singleton);
wifi_singleton->connection_target = (settings::WifiApSettings) {
.ssid = { 0 },
.password = { 0 },
.auto_connect = false
};
WifiMessage message = {.type = WifiMessageTypeDisconnect};
wifi_singleton->queue.put(&message, 100 / portTICK_PERIOD_MS);
unlock(wifi_singleton);
}
void setScanRecords(uint16_t records) {
tt_assert(wifi_singleton);
lock(wifi_singleton);
if (records != wifi_singleton->scan_list_limit) {
scan_list_free_safely(wifi_singleton);
wifi_singleton->scan_list_limit = records;
}
unlock(wifi_singleton);
}
void getScanResults(WifiApRecord records[], uint16_t limit, uint16_t* result_count) {
tt_assert(wifi_singleton);
tt_assert(result_count);
lock(wifi_singleton);
if (wifi_singleton->scan_list_count == 0) {
*result_count = 0;
} else {
uint16_t i = 0;
TT_LOG_I(TAG, "processing up to %d APs", wifi_singleton->scan_list_count);
uint16_t last_index = TT_MIN(wifi_singleton->scan_list_count, limit);
for (; i < last_index; ++i) {
memcpy(records[i].ssid, wifi_singleton->scan_list[i].ssid, 33);
records[i].rssi = wifi_singleton->scan_list[i].rssi;
records[i].auth_mode = wifi_singleton->scan_list[i].authmode;
}
// The index already overflowed right before the for-loop was terminated,
// so it effectively became the list count:
*result_count = i;
}
unlock(wifi_singleton);
}
void setEnabled(bool enabled) {
tt_assert(wifi_singleton);
lock(wifi_singleton);
if (enabled) {
WifiMessage message = {.type = WifiMessageTypeRadioOn};
// No need to lock for queue
wifi_singleton->queue.put(&message, 100 / portTICK_PERIOD_MS);
} else {
WifiMessage message = {.type = WifiMessageTypeRadioOff};
// No need to lock for queue
wifi_singleton->queue.put(&message, 100 / portTICK_PERIOD_MS);
}
unlock(wifi_singleton);
}
bool isConnectionSecure() {
tt_assert(wifi_singleton);
lock(wifi_singleton);
bool is_secure = wifi_singleton->secure_connection;
unlock(wifi_singleton);
return is_secure;
}
int getRssi() {
tt_assert(wifi_singleton);
static int rssi = 0;
if (esp_wifi_sta_get_rssi(&rssi) == ESP_OK) {
return rssi;
} else {
return 1;
}
}
// endregion Public functions
static void lock(Wifi* wifi) {
tt_assert(wifi);
wifi->mutex.acquire(ms_to_ticks(100));
}
static void unlock(Wifi* wifi) {
tt_assert(wifi);
wifi->mutex.release();
}
static void scan_list_alloc(Wifi* wifi) {
tt_assert(wifi->scan_list == nullptr);
wifi->scan_list = static_cast<wifi_ap_record_t*>(malloc(sizeof(wifi_ap_record_t) * wifi->scan_list_limit));
wifi->scan_list_count = 0;
}
static void scan_list_alloc_safely(Wifi* wifi) {
if (wifi->scan_list == nullptr) {
scan_list_alloc(wifi);
}
}
static void scan_list_free(Wifi* wifi) {
tt_assert(wifi->scan_list != nullptr);
free(wifi->scan_list);
wifi->scan_list = nullptr;
wifi->scan_list_count = 0;
}
static void scan_list_free_safely(Wifi* wifi) {
if (wifi->scan_list != nullptr) {
scan_list_free(wifi);
}
}
static void publish_event_simple(Wifi* wifi, WifiEventType type) {
WifiEvent turning_on_event = {.type = type};
tt_pubsub_publish(wifi->pubsub, &turning_on_event);
}
static bool copy_scan_list(Wifi* wifi) {
if ((wifi->radio_state == WIFI_RADIO_ON || wifi->radio_state == WIFI_RADIO_CONNECTION_ACTIVE) && wifi->scan_active) {
// Create scan list if it does not exist
scan_list_alloc_safely(wifi);
wifi->scan_list_count = 0;
uint16_t record_count = wifi->scan_list_limit;
ESP_ERROR_CHECK(esp_wifi_scan_get_ap_records(&record_count, wifi->scan_list));
uint16_t safe_record_count = TT_MIN(wifi->scan_list_limit, record_count);
wifi->scan_list_count = safe_record_count;
TT_LOG_I(TAG, "Scanned %u APs. Showing %u:", record_count, safe_record_count);
for (uint16_t i = 0; i < safe_record_count; i++) {
wifi_ap_record_t* record = &wifi->scan_list[i];
TT_LOG_I(TAG, " - SSID %s (RSSI %d, channel %d)", record->ssid, record->rssi, record->primary);
}
return true;
} else {
return false;
}
}
static void auto_connect(Wifi* wifi) {
for (int i = 0; i < wifi->scan_list_count; ++i) {
auto ssid = reinterpret_cast<const char*>(wifi->scan_list[i].ssid);
if (settings::contains(ssid)) {
static_assert(sizeof(wifi->scan_list[i].ssid) == (TT_WIFI_SSID_LIMIT + 1), "SSID size mismatch");
settings::WifiApSettings ap_settings;
if (settings::load(ssid, &ap_settings)) {
if (ap_settings.auto_connect) {
TT_LOG_I(TAG, "Auto-connecting to %s", ap_settings.ssid);
connect(&ap_settings, false);
}
} else {
TT_LOG_E(TAG, "Failed to load credentials for ssid %s", ssid);
}
break;
}
}
}
static void event_handler(TT_UNUSED void* arg, esp_event_base_t event_base, int32_t event_id, void* event_data) {
lock(wifi_singleton);
if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_START) {
TT_LOG_I(TAG, "event_handler: sta start");
if (wifi_singleton->radio_state == WIFI_RADIO_CONNECTION_PENDING) {
esp_wifi_connect();
}
} else if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_DISCONNECTED) {
if (wifi_singleton->radio_state != WIFI_RADIO_OFF_PENDING) {
wifi_singleton->connection_wait_flags.set(WIFI_FAIL_BIT);
TT_LOG_I(TAG, "event_handler: disconnected");
wifi_singleton->radio_state = WIFI_RADIO_ON;
publish_event_simple(wifi_singleton, WifiEventTypeDisconnected);
}
} else if (event_base == IP_EVENT && event_id == IP_EVENT_STA_GOT_IP) {
auto* event = static_cast<ip_event_got_ip_t*>(event_data);
TT_LOG_I(TAG, "event_handler: got ip:" IPSTR, IP2STR(&event->ip_info.ip));
wifi_singleton->connection_wait_flags.set(WIFI_CONNECTED_BIT);
} else if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_SCAN_DONE) {
auto* event = static_cast<wifi_event_sta_scan_done_t*>(event_data);
TT_LOG_I(TAG, "event_handler: wifi scanning done (scan id %u)", event->scan_id);
bool copied_list = copy_scan_list(wifi_singleton);
if (
wifi_singleton->radio_state != WIFI_RADIO_OFF &&
wifi_singleton->radio_state != WIFI_RADIO_OFF_PENDING
) {
wifi_singleton->scan_active = false;
esp_wifi_scan_stop();
}
publish_event_simple(wifi_singleton, WifiEventTypeScanFinished);
TT_LOG_I(TAG, "Finished scan");
if (copied_list && wifi_singleton->radio_state == WIFI_RADIO_ON) {
WifiMessage message = {.type = WifiMessageTypeAutoConnect};
// No need to lock for queue
wifi_singleton->queue.put(&message, 100 / portTICK_PERIOD_MS);
}
}
unlock(wifi_singleton);
}
static void enable(Wifi* wifi) {
WifiRadioState state = wifi->radio_state;
if (
state == WIFI_RADIO_ON ||
state == WIFI_RADIO_ON_PENDING ||
state == WIFI_RADIO_OFF_PENDING
) {
TT_LOG_W(TAG, "Can't enable from current state");
return;
}
TT_LOG_I(TAG, "Enabling");
wifi->radio_state = WIFI_RADIO_ON_PENDING;
publish_event_simple(wifi, WifiEventTypeRadioStateOnPending);
if (wifi->netif != nullptr) {
esp_netif_destroy(wifi->netif);
}
wifi->netif = esp_netif_create_default_wifi_sta();
// Warning: this is the memory-intensive operation
// It uses over 117kB of RAM with default settings for S3 on IDF v5.1.2
wifi_init_config_t config = WIFI_INIT_CONFIG_DEFAULT();
esp_err_t init_result = esp_wifi_init(&config);
if (init_result != ESP_OK) {
TT_LOG_E(TAG, "Wifi init failed");
if (init_result == ESP_ERR_NO_MEM) {
TT_LOG_E(TAG, "Insufficient memory");
}
wifi->radio_state = WIFI_RADIO_OFF;
publish_event_simple(wifi, WifiEventTypeRadioStateOff);
return;
}
esp_wifi_set_storage(WIFI_STORAGE_RAM);
// TODO: don't crash on check failure
ESP_ERROR_CHECK(esp_event_handler_instance_register(
WIFI_EVENT,
ESP_EVENT_ANY_ID,
&event_handler,
nullptr,
&wifi->event_handler_any_id
));
// TODO: don't crash on check failure
ESP_ERROR_CHECK(esp_event_handler_instance_register(
IP_EVENT,
IP_EVENT_STA_GOT_IP,
&event_handler,
nullptr,
&wifi->event_handler_got_ip
));
if (esp_wifi_set_mode(WIFI_MODE_STA) != ESP_OK) {
TT_LOG_E(TAG, "Wifi mode setting failed");
wifi->radio_state = WIFI_RADIO_OFF;
esp_wifi_deinit();
publish_event_simple(wifi, WifiEventTypeRadioStateOff);
return;
}
esp_err_t start_result = esp_wifi_start();
if (start_result != ESP_OK) {
TT_LOG_E(TAG, "Wifi start failed");
if (start_result == ESP_ERR_NO_MEM) {
TT_LOG_E(TAG, "Insufficient memory");
}
wifi->radio_state = WIFI_RADIO_OFF;
esp_wifi_set_mode(WIFI_MODE_NULL);
esp_wifi_deinit();
publish_event_simple(wifi, WifiEventTypeRadioStateOff);
return;
}
wifi->radio_state = WIFI_RADIO_ON;
publish_event_simple(wifi, WifiEventTypeRadioStateOn);
TT_LOG_I(TAG, "Enabled");
}
static void disable(Wifi* wifi) {
WifiRadioState state = wifi->radio_state;
if (
state == WIFI_RADIO_OFF ||
state == WIFI_RADIO_OFF_PENDING ||
state == WIFI_RADIO_ON_PENDING
) {
TT_LOG_W(TAG, "Can't disable from current state");
return;
}
TT_LOG_I(TAG, "Disabling");
wifi->radio_state = WIFI_RADIO_OFF_PENDING;
publish_event_simple(wifi, WifiEventTypeRadioStateOffPending);
// Free up scan list memory
scan_list_free_safely(wifi_singleton);
if (esp_wifi_stop() != ESP_OK) {
TT_LOG_E(TAG, "Failed to stop radio");
wifi->radio_state = WIFI_RADIO_ON;
publish_event_simple(wifi, WifiEventTypeRadioStateOn);
return;
}
if (esp_wifi_set_mode(WIFI_MODE_NULL) != ESP_OK) {
TT_LOG_E(TAG, "Failed to unset mode");
}
if (esp_event_handler_instance_unregister(
WIFI_EVENT,
ESP_EVENT_ANY_ID,
wifi->event_handler_any_id
) != ESP_OK) {
TT_LOG_E(TAG, "Failed to unregister id event handler");
}
if (esp_event_handler_instance_unregister(
IP_EVENT,
IP_EVENT_STA_GOT_IP,
wifi->event_handler_got_ip
) != ESP_OK) {
TT_LOG_E(TAG, "Failed to unregister ip event handler");
}
if (esp_wifi_deinit() != ESP_OK) {
TT_LOG_E(TAG, "Failed to deinit");
}
tt_assert(wifi->netif != nullptr);
esp_netif_destroy(wifi->netif);
wifi->netif = nullptr;
wifi->scan_active = false;
wifi->radio_state = WIFI_RADIO_OFF;
publish_event_simple(wifi, WifiEventTypeRadioStateOff);
TT_LOG_I(TAG, "Disabled");
}
static void scan_internal(Wifi* wifi) {
WifiRadioState state = wifi->radio_state;
if (state != WIFI_RADIO_ON && state != WIFI_RADIO_CONNECTION_ACTIVE && state != WIFI_RADIO_CONNECTION_PENDING) {
TT_LOG_W(TAG, "Scan unavailable: wifi not enabled");
return;
}
if (!wifi->scan_active) {
if (esp_wifi_scan_start(nullptr, false) == ESP_OK) {
TT_LOG_I(TAG, "Starting scan");
wifi->scan_active = true;
publish_event_simple(wifi, WifiEventTypeScanStarted);
} else {
TT_LOG_I(TAG, "Can't start scan");
}
} else {
TT_LOG_W(TAG, "Scan already pending");
}
}
static void connect_internal(Wifi* wifi) {
TT_LOG_I(TAG, "Connecting to %s", wifi->connection_target.ssid);
// Stop radio first, if needed
WifiRadioState radio_state = wifi->radio_state;
if (
radio_state == WIFI_RADIO_ON ||
radio_state == WIFI_RADIO_CONNECTION_ACTIVE ||
radio_state == WIFI_RADIO_CONNECTION_PENDING
) {
TT_LOG_I(TAG, "Connecting: Stopping radio first");
esp_err_t stop_result = esp_wifi_stop();
wifi->scan_active = false;
if (stop_result != ESP_OK) {
TT_LOG_E(TAG, "Connecting: Failed to disconnect (%s)", esp_err_to_name(stop_result));
return;
}
}
wifi->radio_state = WIFI_RADIO_CONNECTION_PENDING;
publish_event_simple(wifi, WifiEventTypeConnectionPending);
wifi_config_t wifi_config = {
.sta = {
/* Authmode threshold resets to WPA2 as default if password matches WPA2 standards (pasword len => 8).
* If you want to connect the device to deprecated WEP/WPA networks, Please set the threshold value
* to WIFI_AUTH_WEP/WIFI_AUTH_WPA_PSK and set the password with length and format matching to
* WIFI_AUTH_WEP/WIFI_AUTH_WPA_PSK standards.
*/
.ssid = {0},
.password = {0},
.scan_method = WIFI_ALL_CHANNEL_SCAN,
.bssid_set = false,
.bssid = { 0 },
.channel = 0,
.listen_interval = 0,
.sort_method = WIFI_CONNECT_AP_BY_SIGNAL,
.threshold = {
.rssi = 0,
.authmode = WIFI_AUTH_WPA2_WPA3_PSK,
},
.pmf_cfg = {
.capable = false,
.required = false
},
.rm_enabled = 0,
.btm_enabled = 0,
.mbo_enabled = 0,
.ft_enabled = 0,
.owe_enabled = 0,
.transition_disable = 0,
.reserved = 0,
.sae_pwe_h2e = WPA3_SAE_PWE_BOTH,
.sae_pk_mode = WPA3_SAE_PK_MODE_AUTOMATIC,
.failure_retry_cnt = 1,
.he_dcm_set = 0,
.he_dcm_max_constellation_tx = 0,
.he_dcm_max_constellation_rx = 0,
.he_mcs9_enabled = 0,
.he_su_beamformee_disabled = 0,
.he_trig_su_bmforming_feedback_disabled = 0,
.he_trig_mu_bmforming_partial_feedback_disabled = 0,
.he_trig_cqi_feedback_disabled = 0,
.he_reserved = 0,
.sae_h2e_identifier = {0},
}
};
static_assert(sizeof(wifi_config.sta.ssid) == (sizeof(wifi_singleton->connection_target.ssid)-1), "SSID size mismatch");
memcpy(wifi_config.sta.ssid, wifi_singleton->connection_target.ssid, sizeof(wifi_config.sta.ssid));
memcpy(wifi_config.sta.password, wifi_singleton->connection_target.password, sizeof(wifi_config.sta.password));
wifi->secure_connection = (wifi_config.sta.password[0] != 0x00);
esp_err_t set_config_result = esp_wifi_set_config(WIFI_IF_STA, &wifi_config);
if (set_config_result != ESP_OK) {
wifi->radio_state = WIFI_RADIO_ON;
TT_LOG_E(TAG, "failed to set wifi config (%s)", esp_err_to_name(set_config_result));
publish_event_simple(wifi, WifiEventTypeConnectionFailed);
return;
}
esp_err_t wifi_start_result = esp_wifi_start();
if (wifi_start_result != ESP_OK) {
wifi->radio_state = WIFI_RADIO_ON;
TT_LOG_E(TAG, "failed to start wifi to begin connecting (%s)", esp_err_to_name(wifi_start_result));
publish_event_simple(wifi, WifiEventTypeConnectionFailed);
return;
}
/* Waiting until either the connection is established (WIFI_CONNECTED_BIT)
* or connection failed for the maximum number of re-tries (WIFI_FAIL_BIT).
* The bits are set by wifi_event_handler() */
uint32_t bits = wifi_singleton->connection_wait_flags.wait(WIFI_FAIL_BIT | WIFI_CONNECTED_BIT);
if (bits & WIFI_CONNECTED_BIT) {
wifi->radio_state = WIFI_RADIO_CONNECTION_ACTIVE;
publish_event_simple(wifi, WifiEventTypeConnectionSuccess);
TT_LOG_I(TAG, "Connected to %s", wifi->connection_target.ssid);
if (wifi->connection_target_remember) {
if (!settings::save(&wifi->connection_target)) {
TT_LOG_E(TAG, "Failed to store credentials");
} else {
TT_LOG_I(TAG, "Stored credentials");
}
}
} else if (bits & WIFI_FAIL_BIT) {
wifi->radio_state = WIFI_RADIO_ON;
publish_event_simple(wifi, WifiEventTypeConnectionFailed);
TT_LOG_I(TAG, "Failed to connect to %s", wifi->connection_target.ssid);
} else {
wifi->radio_state = WIFI_RADIO_ON;
publish_event_simple(wifi, WifiEventTypeConnectionFailed);
TT_LOG_E(TAG, "UNEXPECTED EVENT");
}
wifi_singleton->connection_wait_flags.clear(WIFI_FAIL_BIT | WIFI_CONNECTED_BIT);
}
static void disconnect_internal_but_keep_active(Wifi* wifi) {
esp_err_t stop_result = esp_wifi_stop();
if (stop_result != ESP_OK) {
TT_LOG_E(TAG, "Failed to disconnect (%s)", esp_err_to_name(stop_result));
return;
}
wifi_config_t wifi_config = {
.sta = {
.ssid = {0},
.password = {0},
.threshold = {
.rssi = 0,
.authmode = WIFI_AUTH_OPEN,
},
.sae_pwe_h2e = WPA3_SAE_PWE_UNSPECIFIED,
.sae_h2e_identifier = {0},
},
};
esp_err_t set_config_result = esp_wifi_set_config(WIFI_IF_STA, &wifi_config);
if (set_config_result != ESP_OK) {
// TODO: disable radio, because radio state is in limbo between off and on
wifi->radio_state = WIFI_RADIO_OFF;
TT_LOG_E(TAG, "failed to set wifi config (%s)", esp_err_to_name(set_config_result));
publish_event_simple(wifi, WifiEventTypeRadioStateOff);
return;
}
esp_err_t wifi_start_result = esp_wifi_start();
if (wifi_start_result != ESP_OK) {
// TODO: disable radio, because radio state is in limbo between off and on
wifi->radio_state = WIFI_RADIO_OFF;
TT_LOG_E(TAG, "failed to start wifi to begin connecting (%s)", esp_err_to_name(wifi_start_result));
publish_event_simple(wifi, WifiEventTypeRadioStateOff);
return;
}
wifi->radio_state = WIFI_RADIO_ON;
publish_event_simple(wifi, WifiEventTypeDisconnected);
TT_LOG_I(TAG, "Disconnected");
}
// ESP Wi-Fi APIs need to run from the main task, so we can't just spawn a thread
_Noreturn int32_t wifi_main(TT_UNUSED void* parameter) {
TT_LOG_I(TAG, "Started main loop");
tt_assert(wifi_singleton != nullptr);
Wifi* wifi = wifi_singleton;
MessageQueue& queue = wifi->queue;
if (TT_WIFI_AUTO_ENABLE) {
enable(wifi);
scan_internal(wifi);
}
WifiMessage message;
while (true) {
if (queue.get(&message, 10000 / portTICK_PERIOD_MS) == TtStatusOk) {
TT_LOG_I(TAG, "Processing message of type %d", message.type);
switch (message.type) {
case WifiMessageTypeRadioOn:
lock(wifi);
enable(wifi);
unlock(wifi);
break;
case WifiMessageTypeRadioOff:
lock(wifi);
disable(wifi);
unlock(wifi);
break;
case WifiMessageTypeScan:
lock(wifi);
scan_internal(wifi);
unlock(wifi);
break;
case WifiMessageTypeConnect:
lock(wifi);
connect_internal(wifi);
unlock(wifi);
break;
case WifiMessageTypeDisconnect:
lock(wifi);
disconnect_internal_but_keep_active(wifi);
unlock(wifi);
break;
case WifiMessageTypeAutoConnect:
lock(wifi);
auto_connect(wifi_singleton);
unlock(wifi);
break;
}
}
// Automatic scanning is done so we can automatically connect to access points
lock(wifi);
bool should_start_scan = wifi->radio_state == WIFI_RADIO_ON && !wifi->scan_active;
unlock(wifi);
if (should_start_scan) {
scan_internal(wifi);
}
}
}
static void service_start(Service& service) {
tt_assert(wifi_singleton == nullptr);
wifi_singleton = new Wifi();
service.setData(wifi_singleton);
}
static void service_stop(Service& service) {
tt_assert(wifi_singleton != nullptr);
WifiRadioState state = wifi_singleton->radio_state;
if (state != WIFI_RADIO_OFF) {
disable(wifi_singleton);
}
delete wifi_singleton;
wifi_singleton = nullptr;
// wifi_main() cannot be stopped yet as it runs in the main task.
// We could theoretically exit it, but then we wouldn't be able to restart the service.
tt_crash("not fully implemented");
}
extern const Manifest manifest = {
.id = "Wifi",
.onStart = &service_start,
.onStop = &service_stop
};
} // namespace
#endif // ESP_TARGET
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